AMY (scientific instrument)

The AMY detector was used by particle physicists at the TRISTAN electron-positron collider at KEK in Japan between 1984 and 1995 to search for new particles and perform precision studies of the strong and electroweak forces.

A photograph of the AMY detector

It was built and operated by physicists from many countries, including: the USA, Japan, South Korea, China, and the Philippines. For tracking charged particles, the detector contained an Inner Tracking Chamber[1] and a Central Drift Chamber. A novel X-ray detector,[2] sensitive to x-rays produced by electrons via synchrotron radiation in AMY's 3Tesla solenoidal magnet, was used for electron identification. The Barrel electromagnetic calorimeter[3] was a sampling calorimeter using lead as its passive material and gas for sampling. AMY also had a muon detection system outside of the magnet return yoke.

Its most highly cited paper is "Multi - hadron event properties in e+e− annihilation at s√=52 GeV to 57-GeV"[4]

While the names of most particle physics experiments are acronyms, AMY is just AMY.

## References

1. ↑ Frautschi, M.; Johnson, D.R.; Kagan, H.; Kass, R.; Trahern, C.G.; Maeshima, K.; Malchow, R.L.; Sparks, K. et al. (1991). "The AMY inner tracking chamber". Nuclear Instruments and Methods in Physics Research Section A 307 (1): 52. doi:10.1016/0168-9002(91)90130-I. Bibcode: 1991NIMPA.307...52F.
2. ↑ Harada, H.; Eno, S.; Poling, R.; Shaw, N.M.; Thorndike, E.H.; Abe, K.; Fujii, Y. (1988). "Electron identification using synchrotron radiation". Nuclear Instruments and Methods in Physics Research Section A 265 (1–2): 141. doi:10.1016/0168-9002(88)91065-0. Bibcode: 1988NIMPA.265..141H.
3. ↑ Abashian, A.; Gotow, K.; Naito, F.; Kajino, F.; Green, J.; Park, I.H.; Sakamoto, S.; Sannes, F. et al. (1992). "The AMY barrel electromagnetic shower counter at TRISTAN". Nuclear Instruments and Methods in Physics Research Section A 317 (1–2): 75. doi:10.1016/0168-9002(92)90594-T. Bibcode: 1992NIMPA.317...75A.
4. ↑ Li, Y. K. et al. (1990). "Multi - hadron event properties in e+e− annihilation at s√=52 – 57 GeV". Phys. Rev. D 41 (9): 2675–2688. doi:10.1103/PhysRevD.41.2675. PMID 10012661.

## External links

Record for AMY 
 A HIGH RESOLUTION LEPTON DETECTOR FOR TRISTAN, KEK-TE-003 experiment on INSPIRE-HEP

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